> A “friend request” mechanism is one way of achieving this.
But then you’re left dealing with spam “friend requests”, which is still something I have to take action on, filter out, or ignore — same as spam email.
Having a trustworthy inbox that contains only legitimate email and a separate friend request queue where you can decide “do I know this person / organisation?” is far better than having a single inbox that’s a vast ocean of emails of unknown provenance you have to make a trust decision for for every single email.
Having a trustworthy inbox that contains only legitimate email and a separate friend request queue where you can decide “do I know this person / organisation?” is far better than having a single inbox that’s a vast ocean of emails of unknown provenance you have to make a trust decision for for every single email.